Stopping instrumentality and mechanism for textile apparatus.



, R. CROMPTON.

STOPPING INSTRUMENTALITY AND MECHANISM FOR TEXTILE APPARATUS.

APPLICATION FILED OCLZO. l9l3.

Patented June 8, 1915.

'Wnmaw Iva/7219112701 Rando Zpk/ rompion/ by $5 2 I/ .flbs

THE NORRIS PETERS c0. PHOTQLITHQ. WASHINGTON. D.

"meme s'rn'rns rnrnnr emcee RANDOLPH cnoivrrron, or GHA'lI-IAM,MASSACHUSETTS-.7

STOPPING INSTRUMENTALITY AND MECHANISMIFOR TEXTILE APPARATUS.

T all whom it may concern: t

.Be it knownthat I, RANDOLPH CRoMr'roN, a citizen of the United States,and a resident of Chatham, in the county of Barnstable and State ofMassachusetts, have invented an Improvement in. StoppingInstrumentalities and Mechanisms for Textile Apparatus, of which thefollowing description, inconnection with the accompanying drawings, is aspecification, like characters on the drawings representing like parts.I

This invention relates to stopping instrumentalities and mechanisms fortextile apparatus, and particularlyfor looms. p

In order that the principle of the 1nve ntionmay be readily understood,I have d1sclosed a single embodiment thereof in the accompanyingdrawings,'wherein Y Figure 1 is a front elevation of a portlo of two.heddle frames each having my 1mproved heddle device mounted thereon;Fig.

2 is a vertical transverse section, showing the heddle devices in sideelevation, the shed being closed; Fig. 3 is a view similarto Fig.

2, the shed being open; Fig. 4 is a view simielar to Fig. 3 butindicating warp fault and the consequent movement of a heddle devlce.Fig. 5 is a view, with parts broken away or omitted, but generallysimilar to Fig. 2, and

representing a modified form of my invention, and Fig. 6 is a view infront elevation,

with parts broken away or omitted, of a slightly modified form of myinvention. 7

In my application Serial No. 7 7 9,972, filed July 19, 1913, I havefully disclosed stopping V mechanism for textile apparatus andparpermechanism. I therefore make reference] ticularly adapted for looms,wherein are employed heddle devices of the general character herein setforth. The heddle devices hereinrepresented are adaptedto co-act withany suitable stopping in'strumentality, such for example as a cross rod,bar or tube, to

be lifted upon warp fault and which may be. connected in any suitablemanner, as byv the means shown in said application, to the ship- 7 tosaid companion application for a full dis-- closure of one. type ofmeansfor operatively connecting the heddle devices to the shipper.

mechanisrmbut I desire. it to beunderstood that my present invention isnot limited 'to theuse of the connections thereshown.

Looms have long been provided with warp I Specification of LettersPatent.

Patented June 8, 1915. A plication filed October 20, 1913. Serial No.796,157.

been placed in" ther'ear of the harness, but

in almostall cases it has heretofore been necessary to rely upon theaction of'gravity and therefore to use parts of substantial Weight inthe" nature of. drop bars or the like. In all commercial .stopl motionsfor loomsknown to meemploying heddle stops, the heddle has acted throughgravity to-initiate the stoppage of theloom. This has necessitated theuseof metallic or like heddles inflexible: or non-collapsible in thedirection of itslength, althoughflhi-ghly flexible i- 7 laterally. Inpractice, the metallic drop:

heddles have given fair satisfaction upon certain kinds of fabrics, butupon certain classes of warps,;these heddles have been found to beimpracticable, as they result in the roughening and chafingof the yarnand tempt to overcomethis objection, and particularly in the weaving ofcloth involved 1n the use of finer and more delicate warps,

,do not receive'tha't amount ofvertical reciprocation incident to the'shedding'action of the warps, or in certain cases they have been thebreaking of itstenderstrandsv In anatthe dropshavebeen' located behindthe. harness, and therefore in a position where they .80

so positioned that they receive no movement V dueto the shedding actionvalone. The 010- i jectlons to this latter class of stop devices are,however, serious, for there involved a large complement; or supply foreach loom at least as many as the number of ends 1 used. Thisinvolves,,.with many classes of drop devices, the drawing of the warpendsthrough "the drops as well as through the harness, thus largelyincreasing the labor lncldent to the preparation of the warp for warp.ends in the weaving operation than do the metallic drop heddles,nevertheless'the former class of drop devices does seriously silk goods.Thefso-called. cotton harness,

the loom.;; While: drop devices positioned; back 'of the'harnessdo. lessinjuryto the textile material-such, foreXample, as cotton or twine' o'rmaterial that is. collapsible in :the direction of its length, isuniversally -acknowledged' to be best adapted for-useupon 10 5 1 finework. I have succeeded in utilizing the r having no warp stop motions.

Metallic drop devices are open to certain serious objections, such asthe rusting and the electrifying thereof. The latter phenomenon, whichis of frequent occurrence in loom practice, results in the holding ofthe drop of a faulty warp end in place, so that the warp fault is notindicated.

In the preferred embodiment of my in-v vention,1 employ stop devices,which are of the type of so-called cotton harness, to which I havereferred, and which do not rely or depend upon the action of gravity toeffect the stoppage of the loom in the event of warp fault. The stoppingaction is thus rendered more certain because no electrification of dropscan occur, and because there is less crowding of parts. j Moreover, inthat embodiment of the invention herein disclosed, T provide a positiveinitiation of the stopping action as contrasted. with one which isinitiated through the action of gravity. Furthermore in that embodimentof the invention herein disclosed,

the broken or faulty warp end is elevated above the plane of the warpsor above the upper plane of .the shed of the warps, in-

stead of being depressed as heretofore, and

thus the broken end may be readily seen and more readily repaired.

Referring more particularly to the draw ings, wherein T have typified myinvention as applied to a loom, T have thereinrepresented two heddleframes 1, 2 having upper cross members 3, .4- and lower cross mem bers5, 6. T have herein represented my invention as applied to a loom havingbut a single pair of heddle frames, but it may be employed in a loomhaving any desired number of heddle frames. The said heddle frames 1, 2are reciprocated by any suitable shedding mechanism. For the sake ofclearness, T have shown but a single heddle device 7, 8 in connectionwith each heddle frame. Each heddl ceives two warp ends and thenumber-of heddles is proportional to the number'of warp ends. Theheddlesare preferably composed of some suitable fibrous or textile material,such as cotton, though I desire it to be clearly understood thatfor theaccomplishment of certain advantages and objects of my invention, 1 mayemploy 'heddles formed partially or Wholly of some suitable device isduplex in that it remetal or non-fibrous material, such for example aswire. I have represented each duplex heddle device as composed ofacontinuous twisted strand, piece or band of textile material, such ascotton, cord or twine, it being passed about the upper member 3 or a andthe lower member 5 or 6 of its heddle frame in such a manner that it cantravel longitudinally, that is, in the direction of its own length andin either direction. Each heddle device may be regarded, andparticularly when viewed in side elevation as in Figs. 2, 3 and 4, ascom posed of two members lettered respectively A and B and C and D,although preferably each heddle device is continuous and uninterrupted.Each of the members A, B, C and D is provided witha suitable eye or warpreceiving formation 9, 9, 9, 9, and through the several eyes pass thefour warp ends respectively lettered a, b, 0, (Z. Each heddle device,being composed, in accordance with preferred embodiment of my invention,of a continuous strand of textile material, such, for example, as twineor cotton is of universal fiexibility'and is soft so as not to actharshly upon the warp ends. To prevent stretching of the heddle devicesupon warp stress, they are sized or otherwise suitably treated, and theeyes 9 may be varnished.

Viewing each heddle device in front and also in side elevation,reference being made to Figs. 1 and 2, it will be observed that the endsof each heddle device are knotted together at 10 at or closely adjacentto the upper cross member or 4: of the heddle frame. The knots ofadjacent heddle devices on the same frame are preferably arranged instaggered relation, so as to permit the employment of a larger number ofsuch devices per inch without interference. From each knot 10 two strandportions'll, 12 extend down in parallelism to the point 13 where theyare crossed or formed into a half knot constituting the upper limit ofthe warp end receiving eye 9. The said strand por tions are separated toform the eye 9, and are then brought together and recrossed at 14 tocomplete the eye, and are then continued downwardly as indicated at 15,1.6 in general parallel relation. Two strand .portions 17 '18 indicatedat the upper portion of Fig. I, extend from the knot 19 about the crossmember 3 or 4 and are continued downwardly in a manner similar to thestrand portions just described to form the other heddle member. Eachknot 10 also binds to gether the several strand portions 11, 12, 17 and18. The strand portion 16 extending from the eye 9 passes under andabout the lower cross member 5 or 6 of the heddle frame and is continuedupward as the strand portion 19 to the eye 9 of the heddle a -B. Theother strand portion extending downward from the eye 9, Passes under thecross member 5 or 6 of the heddle frame and 1s continued upward as thestrand portion 20 to the eye 9. Thus I provide two loops passing underthe cross member 5 or-..6, one loop being composed of the strandportions 16, 19, being of sulficient length to fit' rather closely aboutthe cross member 5 or6, and the other loop being Composed of the strandportions 15, 20, thus providing a considerably longer loop and which isintended to co act with the stopping instrumentality, here= inrepresented as a tube 21 ofsuflicient lengthto recelve all theelongated'loops of each heddle device. It will thus be observed thateach heddle device has but a. single knot, which is in its upperportionand preferably closely adjacent or' in a contact with the crossmember 3 or 4 0f the heddle frame.

It will be observed that thewarp end receiving eye or, formation of eachheddle member is elongated, it being preferably varnished as previouslystated for the I'GCBP".

tion of the warp end, and it will furthermore 'be observed that each eyeis substantially,

centrally positioned with respect-to the ups per and lower cross membersof its heddle frame. I a 1 i The length of each of the elongated loopscomposed of strands 15, 20 is such that during the shedding operation,as indicated in Fig. 3, the tube? 21' is]not lifted.- When,

' ment of the member C thereof, carrying I with it the broken or faultyend 0 into the however, warp. fault occurs, such. as Warp breakage andas indicated at cinrFig; 1,

elevated position shownin Fig. 4. Thus the broken. or faulty warp end islifted above the plane er the shed in which it occurs. This causes anabnormal pull or movement 1 of. the strand portion 15 of the; elongatedloop, and results in the liftingiof the tube 21 from the dotted lineposition to the full line position indicated in" Fig. 4:, whereuponthrough suitable instrumentalities, such as shown in. my co-pendingapplication above referred to, the shipper mechanism is operate. .71 vInasmuch as in the disclosed embodiment of the invention, if there werenot a positive connection between the. tube 21 and the elongated'loops,the members or strand portions of such loops: would merely move looselyabout said tube when abnormal movement thereof occurs iupon warp,-:fault. I herein" provide astrip22 extending longitudinally;

of the tube 21 at its; underside and secured by a series of screws 23thereto, so as to. clamp each elongated loop. to-the said tube.

Any other suitable connection may', -how'- ever, be employed for thepurpose, v in certain types of. my tive connectionis. not necessary. I

hav'ethus far assumed that end that is broken is one in the upper planeinvention, such a j'posi- I of-the-shedL It is evidentwthat if thewarp-p1 or faulty warp end is in the. lower planeof the ,shedfthedescribed. movement of the heddle device upon its supporting membersoccurs when the heddle frame thereof is" lifted intheshedding-operationr In other words, if the warp end breaks when inthe lower plane of the shed, such warp end, as soon asitis moved intothe upper plane of theshed, is immediately lifted above the 'fault orbreakage occurs when the broken? I' plane of such shed, as indicatedin-Fig. 4:.

It is not essential to my invention thatzthe duplex heddle thus beprovided; with two downwardly employ any suitable flexible connectioneX-' extending loop portions, although ,such construction is preferred.V Within the scope of .my' invent1on,I may 1:.

tending from or forming a portion) of :the

duplex heddle and attached in anysuita'ble manner to the stoppinginstrumentality I w herein typified by thetube 21. I A- single.downwardly extending'loop may be provided passing freely about the-lowercross member 50r6 and any suitable flexible cone nection may be providedbetween the duplex heddle device and the. saidtube 21. In Fig.

5 the portion 15, is attached by strip 22 and screws 23 to the tube 21,and the portion 20' 23, saidportionsnot forming acom'plete or continuousloopplEachportion .15 and 20: is unlooped. Neither is it essential-t0 myis attached thereto by strips 22and screws invention that the duplexheddle be provided with two upwardly extendingloop portions, though suchconstruction is herein illustrated and is preferred. 7 In F ig..6 ,I

have," however, represented at A a single upwardly; extending loopportion. Within the scope'of my inventionI may employ variousconnections between the eyes of each duplex heddl'e, to effect-theshifting 'move, ment thereof in the event of warp fault. 1

1 It will be understood from" the foregoing-,- description that the.stopping instrumentality is positive in its action .and isfnot dependentupon the action of gravity.

avoiding-the use of warp drops, I doaway with thenecessity for drawingthewarp ends through vdrop' devices-kin addition to j I the heddles,and, am, enabledltogutilize the so-called cotton harnesses which do not"chafe or fray-thewarp ends.-

Having thus v described: one illustrative embodiment of. my invention, Idesire it to b'eunderstoodfthat although specific terms are employed,they are used in a generic and:descriptive sense and not for purposes oflimitation, the scope of the invention being set forthin the followingclaims.

Claims 1.. In a loom stopping instrumentality, a duplex heddle device ofa-single piece of material havingtwo warp end receiving eyes orformations, two substantially equal length loops extendingupwardtherefrom, a loop extending downward therefrom, a stoppinginstrumentality and a flexible connection from one at least of said eyesand attached to said stopping instrumentality.

2. In a loom stopping instrumentality, a

duplexheddle device of a single piece of r material having two warp endreoelving eyes or formations, a loop extending upwardly therefrom, aloop extending d0wnwardly therefrom, a stopping instrumentality, and aflexible connection from one at least of said eyes and attached to saidstopupwardly and are of substantially equal length and the other two ofwhich extend passing freely about the upper cross member downwardly andare of unequal length.

5. Ina loom stopping instrumentality, a duplex heddle device having twowarp end receiving eyes or formations, two substantially equal lengthloops extending upwardly therefrom and two unequal length loopsextendingdownwardly therefrom.

6. In a loom stopping instrumentality, a duplex heddle device having twowarp end receiving eyes or formations, said eyes being connected by fourloops, two of which extend upwardly and" are of substantially equallength and the other two of which extend downwardly and are of unequallength. r

7. Loom stopping mechanism consisting of'a heddle frame having upper andlower cross members, a transverse stop bar and a duplex heddle devicehaving two warp-end receiving eyes or formations from which extend twosubstantially equal length loops passing freely 'aboutthe upper crossmember andtwo unequal length loops, one passingfreely about the lower crossmember and the other passingabout said stop bar and operativelyrelatedthereto.

8.- Loom stopping mechanism consisting of a heddle frame having upper vand lower cross members, a transverse stop bar, and a duplex heddledevice consisting of a single piece having two warp end receiving eyesor formations from which extend two substantially equal length loopspassing freely about the upper cross member and two unequal lengthloops, one passingfreely about the. lower cross member and the otherpassing about said stop bar and operatively related thereto.

9; A loom stopping instrumentality con sisting of a duplex heddle deviceof a single piece oftextile material having two warp end receivingeyesor formations, two substantially equal length loops extending upwardtherefrom and two unequal length loops extending downwardly therefrom,and a stop device co-actingwith one of said downwardly extending loops.

10. Loom stopping mechanism consisting of a heddle frame having upperand lower cross members, a transverse stop bar and a duplex heddledevice having two warp end receiving eyes or formations from whichextend two substantially equal length loops passing freely about theupper cross mem ber and two unequal length loops, one passing freelyabout the lower cross member and the other about said stop bar, saidlatter loop receiving eyes or formations from which extend twosubstantially equal length loops and two unequal length loops, onepassing freely about the lower cross member and the other about saidstop bar, and a strip to secure said latter loop to said'stop bar.

12. Loom stopping mechanism consisting of a heddle frame having upperand lower cross members, a stop device and a duplex heddle devicehavingtwo warp end receiving eyes or formations from which extend twosubstantially equal length loops passing freely about the upper crossmember and two unequal length loops, one passing freely about the lowercross member and the other engagingsaid stop device.

13. In a loom stopping instrumentality, a duplex heddle device of asingle piece of textile material having two warp end re ceiving eyes,said piece having its ends knotted at the upper endof the device andhaving spaced half knots or crossings defining said eyes andalso havingtwo loops extending upward from said eyes and united at said knot, andtwo loops extending downward from said eyes and a stop motioninstrumentality operatively associated with one of said downwardlyextending loops.

14. In a loom stopping instrumentality, a duplex heddle device of asingle piece of textile material having two warp end receiving eyes,said piece having-its ends knotted at the upper end of the device andhaving spaced half knots or crossings defining said eyes, and alsohaving two loops extending upward from said eyes, and two loops ofunequal length extending downward from said eyes.

15. In a loom stopping instrumentality, a duplex heddle device of asingle piece of textile material having two warp end receiving eyes,said piece having its ends united at the upper end of the device andhaving spaced half knots or crossings defining said eyes and also havingtwo loops extending upward from said eyes and connect ed at said endsand two loops'extending downward from said eves and a stop motioninstrumentality operativelv associated with one of said downwardlyextending loops.

16; A loom stopping instrumentality consisting of aduplex heddle deviceof a single piece of textile material having two warp end receivingeyes. said piece having its ends knotted at the upper end of the deviceand having spaced half knots or crossings defining said eves. and alsohaving two loops 18. In a loom stopping instrumentality, a

dHDlGX' heddle device, of a single piece of textile material having twowarp receiving eyes, said piece having spaced half knots or crossingsdefining said eves and also having two loops extending upward fromsaideyes and united at said knot and two loops extending downwardly fromsaid eyes and a stop motion instrumentalitv operatively associated withone of said downwardly extending loo s.

19. Loom stopping mechanism consisting of a heddle frame having upperand lower 17. In a loom stopping instrumentalitv. a.

cross members, a transverse stop bar and a duplex heddle devicehaving'two warp end 20. Loom stopping mechanism consisting of a heddleframe-having upperand lower crossmembers, a stop member and a duplexheddle device having two warp end receiving eyes or'formations fromwhich extend two substantially equal length loops passing freely aboutthe upper cross member and two downward portions, one. being a looppassing freely about the lower cross member and the other beingattachedto said'stop member. r r

' 21. Loom stopping mechanism consisting of a heddle frame having upperand lower cross members, astop member and a duplex heddle deviceflexible in the direction of its length and having two warp endreceiving eyes or formations from which extend two substantially equallength loops passing freelyabout the upper cross member and two downwardmembers, one passing freely about the lower cross member and the otherbeing attached to said stop member.

22. A heddle having two openings for the receptionof the warp ends,arranged to an exterior'member adapted to be connected to theshippermechanism, means between said heddle and said exterior memberand; attached to the latter to displace thelatter to stop the loom uponthe shifting of the heddle eyes.

23. In combination, a heddle having two openings for the reception ofwarp ends, a

heddle frame whereon said heddle is mount-i shift when released by oneof the warp ends," I

ed for shifting movement when released by one'of the fwarp ends, and amember exterior to said heddle frame and adapted to be connected to theshipper mechanism, said hed dle having meansbetween said heddle eves andsaid exterior member and attached to v the latter, to displace saidexterior member, and thereby to stop the loom upon shifting movement ofsaid heddle.

24. In combination, a duplex heddle comprising two members having twoopenings for the receptionof warp ends, a heddle frame whereon saidduplex heddle is mounted for shifting movement when released by one ofthe warp ends, and a member exterior 25. In combination, a heddle framehavmg upper and lower cross members, a duplex heddle having tWo openingsfor the reception of warp ends and mounted upon said cross members forshifting movement When released by a faulty Warp end, and a memberexterior to said heddle frame and adapted to be connected to the shippermechanism, said lieddle having a flexible 10 portion attached to saidexterior member,

therebyto move the latter andvto stop the loom upon shifting movement ofsaid heddle.

In testimony whereof, I have signed my name to this specification, inthe presence of 15 Copies of this patent may be obtained for five centseach, by addressing the Commissioner of Batents, Washington, D. Q.

